About this Sildeshow: This presentation details the fictional life and personality of Ichika Hoshino, a primary character and musician from the rhythm game Project SEKAI. As the fundamental leader of the band Leo/need, she is portrayed as a loyal and empathetic individual who successfully reunited her childhood friends after they grew apart. The slides describe how a peer's illness and hospitalization initially fractured the group, creating emotional hurdles that Ichika overcame through her thoughtful and gentle nature. In addition to biographical facts, the materials provide a personal reflection from the author, highlighting why her commitment to group unity makes her a favorite character. Visual aids and external references from Sekaipedia further illustrate her journey from a lonely student to a dedicated vocalist and guitarist.